automobile engineering is a branch study of engineering whish having manufacturing , designing, mechanical mechanisms as well as operarions of automobiles.
- It is an introduction to vehicle engineering to vehicle engineering which deals with motor cycles, cars , buses trucks etc.
- it includes branch study of mechanical , electic, software and safety elements.
on the basic of load:-
heavy transport vehicle (HTV) or Heavy motor vehicle (HMV) , light transport vehicle(LTV), Light motor vehicle(LMV).
on the basics of fuel used:-
petrol vehicle :- MOTORCYCLE, SCOOTER CAR.
Diesel vehicle:- Truck , bus etc an electric vehicle that uses the battery to drive.
steam vehicle:-
an engine which use steam engine .
gas vehicle :-
LPG And CNG Vehicle .
on the basic of wheel :-
two wheeler vehicle :- for example scooter motorcycle etc.
three wheeler vehicle:- for example automobile , three- wheeler scooter for handicaps and tempo.
four wheeler vehicle :- car , jeep , trucks, bus etc
six wheeler vehicle:- big trucks with two gear axles.
a self prop fender called passanger vechile which is used for land tranport and usually consists of for to eight tires and is powered by internal compustion engine or an electric motor.
* 4 passenger vehicle :-
car , bus , taxi , truck, tempo, containers etc.
* special purpose vehicle :-
ambulance , fire brgade etc
* according to load carrying capacity:-
light motor vehicle , cars jeep
* medium transport vehicle (MMV)
TEMPOS , heavy motors vehicle , truck tractor etc
* on the basis of body style :-
sedan hatchback car
coupe car station wagon convertitle
van special purpose vehicle eg ambulence milk van etc
* on the basis of transmission :-
conventional vehicle with mannuel transmission eg cars with five gears.
semi-automobile
* ont the basic of drive :-
left hand drive
right hand drive
* on the basis of driving axle :-
front wheel drive
rear wheel drive
four wheel drive
* position of engine :-
the engine in front most vehicle have the engine in the front . Example MOST OF the cars
the engine in the rear side , very few vehicle have the engine located in the rear for example a NANO car .
VEHICLE CONSTRUCTION AND LAYOUT:-
the vehicle is based upon type of drive used .
they are
- front engine rear wheel drive
- rear engine rear wheel drive
- front engine front wheel drive
- four wheel drive
Rear wheel drive places the engine in the front of the vehicle and the driven wheel are located at the rear wheels are located at the rear , a configuration known as front engine rear wheel drive layout .
In this layout a front mounted engine clutch gear box unit drive a beam type rear axle supported on leaf spring through a propeller shaft with two universal joints.
- EVEN WEIGHT DISTRIBUTION:-
- for easy front wheel steering
- large luggage space is provided behind the rear seat
- maintanance and accessibility of engine gear box is easy and the control over the acclerator clutch , choke sample.
- rediator cooling is natural ( by air ) so decreases the power required for cooling.
- Reduce back seats leg room space .
- A tunnel is needed for the propeller shaft.
- reduce boot space .
- heaviour and more expansive .
- Excellent traction is available while climbing hills
- a large passenger space is available for the given length of body .
- vey compact and accessible power and transmission assembly is provided .
- let of weight at the back improves accleration and breaking rear wheels and disk brakes can be designed to take a bigger amount of breaking due to the weight distirbution to the rear end .
- passanger are comfortable from engine noise heat and fumes.
- at high speed relatively high proportions of weight at the rear axle will make the car unstable at speed . there is a strong tendency for the vehicle to oversteer.
- the space at the front has to be reduced to allowed for the steering lock of the front wheel.
- space utlizes for engine compartment is wasted.
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